This paper introduces the function features of 3D piping design software for PDA and experience of its application in the nitric acid tail gas treatment project as well as the improvement suggestion for PDA software.

• 介绍pda三维配管设计软件的功能特点 ; 结合硝酸尾气治理项目工程设计中使用的体会 ,对pda软件提出了改进建议。